000
FZNT02 KNHC 212045
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU APR 21 2011

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE 
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE 
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

SECURITE

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND 
GULF OF MEXICO

SYNOPSIS VALID 1800 UTC THU APR 21.
24 HOUR FORECAST VALID 1800 UTC FRI APR 22.
48 HOUR FORECAST VALID 1800 UTC SAT APR 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC TROUGH 31N61W TO LOW PRES 24N63W 1009 MB WITH TROUGH SW TO 
19N66W. N OF 22N WITHIN 360 NM W OF LOW AND TROUGHS NE WINDS 20 
TO 25 KT. SEAS 8 TO 12 FT IN NE SWELL. N OF 23N WITHIN 300 NM E 
OF LOW AND TROUGHS SE TO S WINDS 20 TO 25 KT. SEAS 8 TO 14 FT IN 
MIXED SWELL. ELSEWHERE S OF 29N E OF 55W AND N OF 20N BETWEEN 
55W AND 72W WINDS LESS THAN 20 KT SEAS 8 TO 10 FT IN MIXED NE 
AND E SWELL.
.24 HOUR FORECAST TROUGH 31N59W TO LOW PRES 26N65W 1010 MB WITH 
TROUGH SW TO 19N66W. N OF 22N WITHIN 360 NM W OF LOW AND TROUGHS 
N TO NE WINDS 20 KT. SEAS 8 TO 11 FT IN NE SWELL. N OF 25N 
WITHIN 300 NM E OF LOW AND TROUGHS SE TO S WINDS 20 KT. SEAS TO 
10 FT IN MIXED SWELL. S OF 25N E OF 55W WINDS LESS THAN 20 KT 
SEAS 8 TO 10 FT IN MIXED NE AND E SWELL. 
.48 HOUR FORECAST TROUGH 31N55W TO LOW PRES 23N67W 1012 MB WITH 
TROUGH SE TO 19N64W. W OF LOW AND TROUGHS TO 73W N TO NE WINDS 
20 KT. SEAS TO 10 FT IN NE SWELL. N OF 23N E OF LOW AND TROUGHS 
TO 55W SE TO S WINDS 20 KT. SEAS TO 9 FT IN MIXED SWELL. S OF 
23N E OF 55W WINDS LESS THAN 20 KT SEAS 8 TO 10 FT IN MIXED NE 
AND E SWELL.

.CARIBBEAN N OF 15N W OF 83W NE TO E WINDS 20 KT. SEAS TO 8 FT. 
N OF 18N BETWEEN 73W AND 76W NE WINDS 20 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST N OF 18N BETWEEN 73W AND 82W NE TO E WINDS 20 
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST N OF 18N NE TO E WINDS 20 KT. SEAS TO 8 FT.

.GULF OF MEXICO FROM 20N TO 28N W OF 87W SE WINDS 20 KT. SEAS TO 
8 FT.
.24 HOUR FORECAST FROM 20N TO 28N W OF 85W SE WINDS 20 KT. SEAS 
TO 8 FT. S OF 25N E OF 85W E WINDS 20 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.